Update index.html

Author: today-coding

index.html

@@ -32,7 +32,7 @@ <h1 data-aos="fade-up">
                 함께 성장하는 <span>코딩 커뮤니티</span>
             </h1>
             <p data-aos="fade-up">맛코딩 = 맛소금</p>
-            <a href="https://open.kakao.com/o/gU6ieMfi" class="cta-button" data-aos="flip-up" data-aos-delay="100">오픈채팅 참여</a>
+            <a href="https://open.kakao.com/o/gU6ieMfi" class="cta-button" data-aos="flip-up" data-aos-delay="130">오픈채팅 참여</a>
         </div>
     </section>
     <section id="about">